Abstract
The objective of this research is to assess critically the experimental rate data for sonochemical oxidation of arsenite [As(III)] at different frequencies and powers in the aqueous phase. The oxidative conversion of As(III) into arsenate [As(V)] was >90% in the range of 283 to 450 kHz. With a power density of 69WL-1, the oxidation of As(III) for 40min at 283kHz showed a second-order rate constant of 7:1 × 102 M-1 s-1, whereas it was 3:8 × 103M-1 s -1 at 450 kHz. As calculated by the calorimetric method, the power transferred into samples was in the range of 7-34.5 W with the two frequencies of 283 or 450 kHz. Approximately 100% oxidation efficiency was obtained with a frequency of 450 kHz and 34.5 W. As the pretreatment process, oxidation by sonication has potential applications to groundwater contaminated with both As(III) and As(V).
| Original language | English |
|---|---|
| Article number | 07HE13 |
| Journal | Japanese Journal of Applied Physics |
| Volume | 50 |
| Issue number | 7 PART 2 |
| DOIs | |
| Publication status | Published - 2011 Jul 1 |
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ASJC Scopus subject areas
- Engineering(all)
- Physics and Astronomy(all)
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Sonochemical oxidation of arsenite in aqueous phase. / Cui, Mingcan; Lee, Seban; Jang, Min; Kweon, Boyoun; Jo, Ho Young; Khim, Jeehyeong.
In: Japanese Journal of Applied Physics, Vol. 50, No. 7 PART 2, 07HE13, 01.07.2011.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Sonochemical oxidation of arsenite in aqueous phase
AU - Cui, Mingcan
AU - Lee, Seban
AU - Jang, Min
AU - Kweon, Boyoun
AU - Jo, Ho Young
AU - Khim, Jeehyeong
PY - 2011/7/1
Y1 - 2011/7/1
N2 - The objective of this research is to assess critically the experimental rate data for sonochemical oxidation of arsenite [As(III)] at different frequencies and powers in the aqueous phase. The oxidative conversion of As(III) into arsenate [As(V)] was >90% in the range of 283 to 450 kHz. With a power density of 69WL-1, the oxidation of As(III) for 40min at 283kHz showed a second-order rate constant of 7:1 × 102 M-1 s-1, whereas it was 3:8 × 103M-1 s -1 at 450 kHz. As calculated by the calorimetric method, the power transferred into samples was in the range of 7-34.5 W with the two frequencies of 283 or 450 kHz. Approximately 100% oxidation efficiency was obtained with a frequency of 450 kHz and 34.5 W. As the pretreatment process, oxidation by sonication has potential applications to groundwater contaminated with both As(III) and As(V).
AB - The objective of this research is to assess critically the experimental rate data for sonochemical oxidation of arsenite [As(III)] at different frequencies and powers in the aqueous phase. The oxidative conversion of As(III) into arsenate [As(V)] was >90% in the range of 283 to 450 kHz. With a power density of 69WL-1, the oxidation of As(III) for 40min at 283kHz showed a second-order rate constant of 7:1 × 102 M-1 s-1, whereas it was 3:8 × 103M-1 s -1 at 450 kHz. As calculated by the calorimetric method, the power transferred into samples was in the range of 7-34.5 W with the two frequencies of 283 or 450 kHz. Approximately 100% oxidation efficiency was obtained with a frequency of 450 kHz and 34.5 W. As the pretreatment process, oxidation by sonication has potential applications to groundwater contaminated with both As(III) and As(V).
UR - http://www.scopus.com/inward/record.url?scp=79960579911&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=79960579911&partnerID=8YFLogxK
U2 - 10.1143/JJAP.50.07HE13
DO - 10.1143/JJAP.50.07HE13
M3 - Article
AN - SCOPUS:79960579911
VL - 50
JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
JF - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
SN - 0021-4922
IS - 7 PART 2
M1 - 07HE13
ER -